Di2 Battery Holder for 25.4 mm Seat Posts
BL-01-000106
$21.95
Made from hard, tough, and tear resistant rubber. Completely protects the delicate battery connector.Battery Holder Sizes
We make Di2 battery holders for 25.4mm seat posts with various inside diameter size options primarily for Cannondale seat posts. If you are using a non-Cannondale or FSA seat post, measure the inside diameter with a caliper and round up. If the measurement is more than .25 mm from the available sizes, or an odd shape, contact us for assistance.Seat Post Sizes:
Cannondale Branded
C2 - 19 mm ID
C3 - 19.5 mm ID
FSA Branded
SL-K - 20.5 mm ID
Why use a holder instead of tape or foam?
Ad hoc solutions using tape and foam have multiple issues. The net result is often a damaged or stuck battery.
Problems with Tape or Foam:
- They don't protect the delicate battery connection
- Tape or foam can shrink, causing the battery to fall out
- They can cause the battery to overheat
- Tape, especially, can fuse to the inside of the seat post
Related Items
CAAD12 Di2 Plug Kit
$19.95
This kit plugs all holes left over from a Di2 conversion of the CAAD12 and provides strain relief for the rear derailleur wire. The kit...
View full product details
CAAD12 eTAP Plug Kit
$21.95
This kit plugs all holes left over from a SRAM eTAP conversion of the CAAD12. The kit is comprised of two (2) rubber down tube...
View full product details
Poly Di2 Battery Holder for 25.4 mm Seat Posts
$13.95
This battery holder is for Shimano Di2 internal SM-BTR2 and BT-DN110 batteries. The battery fits inside the seat post and typically requires a seat post...
View full product details
